Blade Opening Features

  • A Thumbstud is used in many folding knives to open the blade with one hand. Often mounted on both sides of the blade for ambidexterity.

  • A Thumbhole can be used in place of a thumbstud to allow easy, one-handed opening.

  • A Nail Nick is a notch carved out of the blade used to open the knife. It is the original opening system for folding knives. Today it is not as popular - or easy to use - as a thumbstud.

  • The Kick, or Flipper, is an extended tang, which passes through the handle of the knife when closed. When pressed, this feature "kicks" the blade open.